{"id":11344,"date":"2020-11-10T09:01:33","date_gmt":"2020-11-10T09:01:33","guid":{"rendered":"https:\/\/www.northafricatrees.org\/genus\/halimium-dunal-spach-2\/"},"modified":"2021-07-23T15:20:49","modified_gmt":"2021-07-23T15:20:49","slug":"halimium-dunal-spach-2","status":"publish","type":"genus","link":"https:\/\/www.northafricatrees.org\/en\/genuses\/halimium-dunal-spach-2\/","title":{"rendered":"Halimium (Dunal) Spach"},"content":{"rendered":"<p>Genus composed of some 13 species, distributed essentially through the Mediterranean region. In North Africa it is represented by some 8 species, all of Mediterranean distribution. For some authors, the differences with the genus <em>Cistus<\/em> are minimal and the species of this genus should be included under <em>Cistus <\/em>[e.g. Demoly (2006), <em>ISFAN<\/em> (2011)]. However, the traditional denomination will be maintained here, in agreement with other authors and <em>The Plant List<\/em> (accessed 27-10-2017).<\/p>\n<p>Of the North African species 5 can be considered more or less shrubby, the other 3 woody species are usually subshrubs that barely exceed 0.5 m in height, they are:<\/p>\n<p><strong> H. calycinum <\/strong>(L.) K. Koch (<em>H. commutatum <\/em>Pau, <em>Cistus calycinus <\/em>L.), of linear leaves, 1-veined and with revolute margin, yellow petals (2n = 18); Iberian-Moroccan endemic, which in Morocco is abundant in the coastal and subcoastal dune systems of the NW, becoming rarer inland.<\/p>\n<p><strong> H. umbellatum <\/strong>(L.) Spach, with linear leaves, 1-veined and with revolute margin, white petals (2n = 18); of Mediterranean distribution, although it seems to be missing from the central Mediterranean. There are 2 subspecies: in North Africa subsp. <strong>viscosum <\/strong>(Willk.) O.Bol\u00f2s &amp; Vigo is present, 25-70 cm, fairly viscous and with stellate hairs only on the underside of the leaves, with few or no stellate hairs on the upper side, pedicels and sepals. Subpecies of western Mediterranean distribution (Iberian-Maghrebi), in North Africa it is found through almost all of the Mediterranean area of \u200b\u200bMorocco and in the NW corner of Algeria (Tlemcen Mts.).<\/p>\n<p><strong> H. atlanticum<\/strong> Humbert &amp; Maire is characterised by its very villous branchlets, with long hairs, calyx with 3 sepals and yellow petals. Species endemic to Morocco, only known from the Tazekka Massif (northern Middle Atlas) and Tidirhin Massif (central Rif).<\/p>\n<p>All of the above are somewhat common species except for <em>H. atlanticum<\/em> which also has a very small distribution area. Currently, they have not been assessed at a global level in the <em>IUCN Red List of Threatened Species<\/em>. In Algeria <em>H. umbellatum <\/em>is included in the List of protected non cultivated flora (Executive Decree 12-03 on 4-Jan-2012).<\/p>\n","protected":false},"template":"","class_list":["post-11344","genus","type-genus","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Halimium (Dunal) Spach - North Africa Trees<\/title>\n<meta name=\"robots\" content=\"noindex, follow\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Halimium (Dunal) Spach - North Africa Trees\" \/>\n<meta property=\"og:description\" content=\"Genus composed of some 13 species, distributed essentially through the Mediterranean region. In North Africa it is represented by some 8 species, all of Mediterranean distribution. For some authors, the differences with the genus Cistus are minimal and the species of this genus should be included under Cistus [e.g. Demoly (2006), ISFAN (2011)]. 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